Back lay betting calculators are used to work out the stake required to hedge bets. Not only that but you can use it to calculator what stakes are required to maximise returns from bookmaker bonus offers. Bet can be made with book makers and made risk free by using the Betfair betting exchange. Differences in the odds quoted by bookmakers and those on Betfair can be used to profit by using back lay arbitrage betting.
We recommend the back lay calculator at Profit Accumulator that is available after free registration. It is a managed calculator so will always work supported by a team of back lay betting experts. Visit here.